| article html file updated | 17 June 2015 09:21 CEST | Update | https://www.mdpi.com/1424-8220/13/5/6552 |
| article html file updated | 24 June 2013 12:07 CEST | Original file | - |
| article xml file uploaded | 24 June 2013 12:06 CEST | Original file | https://www.mdpi.com/1424-8220/13/5/6552/xml |
| article pdf uploaded. | 16 May 2013 12:12 CEST | Version of Record | https://www.mdpi.com/1424-8220/13/5/6552/pdf |
